Roller-skate



(N0 ModeL) J. C. CHOPPER.

' ROLLER SKATE.

Pat ted Mar. 31; 1885.

Ilzei fur O M a E?- W m M d s I I t A u Nrrnn warns ATEN'F QFFICE.

JOSEPH C. CHOPPER, OF CEDAR FALLS, IOXVA.

RC LLER SKATE.

SPECIFICATION forming part of Letters Patent 510.31%,916, dated March 31, 1885.

Application filed April 19, 19:4. (So model.)

T0 whom it may concern.-

Be it known that I, J osurrr O. Cnorrnn, a citizen of the United States, residing'at Cedar Falls, in the county of Black Hawk and State of Iowa, have invented certain new and useful Improvements in RollerSkates; and I do hereby declare that the same are fully described in the following specification andillustrated in the accompanying drawings.

This invention relates to improvements in rollerskates, and it is carried out as follows, reference being had to the accompanying drawings, where Figure 1 represents a side elevation of the improved skate. Fig. 2 represents an end view thereof, as seen from X in Fig. 1. Fig. 3 represents a cross-section on the line A B, as seen from Y in Fig. 1. Fig. 4. represents a bottom View of one of the bearings with its rollers. Fig. 5 represents a longitudinal section on the line C D shown in Fig. 4., and Fig. 6 represents a cross-section on the line E F shown in Fig. 1.

Similar letters refer to similar parts whereever they occur on the different parts of the drawingsa represents the wooden or metal soleplate, as usual, having heel-strap b in its rear end,- or any other well-known or' equivalent device for securing the rear end of the rollerskate to the foot.

To two opposite sides of the forward part of sole-plate a is secured the arched toe-strap c, of a size and shape proportionate to that of the size of the skate, by which means the forward end of the skate can be most easily secured to the toe portion or instep of the skaters boot or shoe simply by inserting and pushing the forward end of the foot into such arched strap, after which the rear end of the skate, may be secured in any desirable manner.

To the under side of the sole-plate a is secured the metal bearing-block (2 (one in each end of the said sole-plate) by means of suit able fastening-screws or in other well-known manner. The bearing-block d has side webs, d d, cast in one piece with its bottom (1, and constitutes a box or incloscd space containing the rubber spring 6, as shown in Figs. 5 and 6. I do not wish, however, to confine myself to the use of a rubber spring, as shown in the drawings, as I may to equal advantage use a made to rest loosely in a semicircular recess coiled metal spring or a metal spring of other form and construction,as may be desired, without departing from the essence of my invention.

Between the rubber e and bottom d of the bearing-block 'd is interposed a metal plate, f, as shown in Figs. 5 and 6.

g is the rocker,havingtrunnionsg and g in its two opposite ends, the former resting loosely in a perforation in the bearing (1 cast in one piece with the bearing-block d,as shown in. Figs. 1, 3, 4, and 5. The trunnion g is in the forked bearing (1*, also cast in one piece with the bearing-block d, as shown in Figs. 1, 2, 4;, and 5, and after the said trunnion g is laid within such forked part dflit is held in position by means of the detachable cap d and transverse split pin d, the latter passing through a perforation made through the forked piece d and detachable cap (P, as .shownin Figs. 1, 2, 4, and 5. The upper side of the rocker g rests against the under side of the rubber spring 6, as shown in Figs. 5 and 6, and for the purpose of adjusting the tension of said spring 0 I employ the screw h, tapped through a screw-threaded perforation in the bottom cl of the bearing-block d, as shown in Figs. 5 and 6, the lower end of such regulating-screw pressing against the upper side of the -metal plate f, as shown, and its upper end having a notched head, h, projecting through a suitable perforation in the sole-plate a, so as to enable the said screw h to be adjusted by means of an ordinary screw-driver or similar tool from the top of the sole-plate a, to regulate the tension of spring 0 in a quick and simple manner to suit the requirements of the skater. The rocker g has on two opposite sides the stop'projections g 9 serving as stops against the side webs, d cl, for the purpose of limiting therocking motion of the rocker g when rocked to its farthest extent in either direc- 95 tion. The lower end of the rocker g terminates as a forked bearing, having a transverse perforation for the reception of the spindle t, on which the rollers 7c are journaled, as usual. culiar manner, as follows: It is provided on its cylindrical surface with one or more grooves, 76', which groove may be of a semicircular, V shape, .or other form, as may be desired, the

Each roller k is constructed in a pe- 10o object of which is to prevent the roller from slipping laterally on the floor, and to make the rollers wear more evenly while the skate is being used. The outer and inner edges, k k, are beveled, as shown, to prevent such edges from breaking and chipping off, as well as to prevent the floor from being marred and injured in the rink where the skates are used. The ends of each roller is grooved, as shown in Fig. 6-that is, each roller end is made with an annular groove, 7c, terminating in its outer portion as an annular ledge or abutment, 76*, at a right angle, or nearly so, to the end of said roller, and it is adapted to serve as a pocket for and to prevent the liquid lubricant used for lubricating the spindle z" to spread outward to the edge of the roller, and thereby preventing the rink floor, as well as the garments of the skaters, from being soiled and greased.

I have shown in the drawings the bearing d as a solid piece without any detachable cap and pin, and the bearing d as being forked, and

provided with a detachable cap, (Z and split pin d"; but I do not wish to confine myself to this exact construction, as I may, iiso desired, make both bearings forked,similar to the one marked 01*, and each provided with detachable cap and split pin, although I prefer to make one hear ing solid and the other one forked, and having detachable cap and fastening-pin, as shown in the drawings.

If it is desired to detach the rocker g from its bearings, it is only necessary to remove the pin d and cap 02 when the rocker may be swung downward until the trunnion g is moved out of the forked bearing d, after which the rocker g is drawn out so that the trunnion g is disengaged from its bearing To connect the said rocker g to its bearings, it is only needful to insert trunnion g into the perforation in bearing d and swing the trunnion 9 into the forked bearing d, after which the cap 01 is put in'position and secured in place by means of the fastening-pin cl, as shown in the drawings.

What I wish to secure'by Letters Patent, and claim, is

in a roller-skate, the bearing-l' lock d, hav ing castintegrai therewith the perforated beariug d and forked bearing d, in combination with the rocker g, carrying the rollers, and secured in place by means of the cap d and pin d, substantially as shown and described.

In testimony whereof I have affixed my signature in presence of two witnesses.

J ()SEPH O. CHOPPER.

Witnesses:

ALBAN ANDREN, HENRY CHADBOURN. 

